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CN1198076A - Method and device for manufacturing aerated frozen products - Google Patents

Method and device for manufacturing aerated frozen products Download PDF

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Publication number
CN1198076A
CN1198076A CN97190927A CN97190927A CN1198076A CN 1198076 A CN1198076 A CN 1198076A CN 97190927 A CN97190927 A CN 97190927A CN 97190927 A CN97190927 A CN 97190927A CN 1198076 A CN1198076 A CN 1198076A
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CN
China
Prior art keywords
housing
screw
frozen
temperature
die
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN97190927A
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Chinese (zh)
Other versions
CN1076957C (en
Inventor
M·J·A·格劳克斯
G·法雅尔德
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Societe des Produits Nestle SA
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Societe des Produits Nestle SA
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
    • A23G9/28—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups for portioning or dispensing
    • A23G9/281—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups for portioning or dispensing at the discharge end of freezing chambers
    • A23G9/285—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups for portioning or dispensing at the discharge end of freezing chambers for extruding strips, cutting blocks and manipulating cut blocks
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/22—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups
    • A23G9/28—Details, component parts or accessories of apparatus insofar as not peculiar to a single one of the preceding groups for portioning or dispensing
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23G—COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF
    • A23G9/00—Frozen sweets, e.g. ice confectionery, ice-cream; Mixtures therefor
    • A23G9/04—Production of frozen sweets, e.g. ice-cream
    • A23G9/20—Production of frozen sweets, e.g. ice-cream the products being mixed with gas, e.g. soft-ice

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Confectionery (AREA)

Abstract

The invention discloses a device for manufacturing aerated frozen products comprising a worm screw located in a sheath 7 equipped at one of its ends with a die 5 and at the other with feed means for the composition to be frozen and, in an intermediate part, air supplying means 8, 9, the sheath being provided with a sleeve tube where refrigerating fluids flow.

Description

The production method of aerated frozen products and equipment
The present invention relates to a kind of production method and a kind of equipment of implementing this method of aerated frozen products.
The production method of traditional aerated frozen products, particularly ice-cream production method generally comprise mixing, homogenizing, pasteurization, the freezing and freezing sequence of operations operations such as composition of need of hardening.In the freezing stage, inflating and make its expansion, its volume scaling up to composition for example is 70%-120%.The inflation material temperature that comes from freezing equipment (frigo) is-5 ℃ to-6 ℃.Then it is inserted a hardening cabinet and harden, make freezing in bulk food core temperature reach-18 ℃ or lower, make bar-shaped extruded food reach-30 ℃ at-40 ℃ to-45 ℃.
People attempt to reduce the temperature of the frozen matter that comes from refrigerator, so that save the energy, improve food configuration, as improve its oiliness.Yet, be that ice-cream viscosity is higher when being lower than-7 ℃ to-8 ℃ in temperature with the unavoidable problem that legacy equipment ran into.Use the scraped surface refrigerator of two serial connections partly to address this problem, first is the traditional type refrigerator, provides aerated ice cream about-7 ℃, and second is to aim at the refrigerator of handling the high-viscosity material design, its temperature can be reduced to about-10 ℃.
For same design, EP-A-0561118 has described a kind of low temperature that is low to moderate-20 ℃ of pacts and has produced ice-cream three-stage process down.Under this discharge temperature, can fully phase out the hardening process of bulk products, can obviously shorten the firm time of extruded product.Phase I, i.e. the pre-expansion stage, under positive temperature, in the need frozen composition, inflate.Second stage, cooling inflation material in the scraped surface interchanger, and making an appointment with-6 ℃ with its discharge.Phase III, this material is cooled to about-20 ℃ with a screw device.
US-A-5024066 relates to a kind of two-stage method.Phase I, the pre-expansion stage, under positive temperature, in the need frozen matter, inflate.Second stage has shaggy Archimedes's screw extruder of scraper with its edge, will inflate material and be cooled to enough low negative temperature, makes it have stable quality, and directly deposits food in freezer.
The objective of the invention is in a stage, to finish material expansion and cooling two procedures than the little equipment of existing apparatus volume easy to operate, when inheriting the above-mentioned energy, product quality aspect advantage, also simplified low-temperature freezing with one.
The present invention relates to a kind of production method of aerated frozen products, in the method, the composition freezing to need mixes, inflation, freezing, it is reached or be lower than-8 ℃, discharge by a die head then, it is characterized in that finishing these operations with separate unit list screw extrusion device in single step, this device is in one and is equipped with in the inflation and the housing of cooling device.
People see in surprise, in the single stage, can inflate, mix, cool off and extrude the freezing composition of need, once worried to add with single screw rod extrusion device the quality of trade union's damage frozen composition, the quality of the cryogenic freezing food that its result obtained is better more stable.This is not an inevitable outcome, because existing method is to inflate earlier in the equipment that separates, cooling is again finished part at least and is cooled to freezing in a device that has a scraper.
In order to implement this method, prepare the ice cream composition with traditional approach, the main component of low-fat ice cream made and ice cream is: breast, skimmed milk, butterfat, condensed milk, milk powder, cream wherein is added with sucrose, glucose, fructose, jam and hydrocolloid stabilisers, as carragenates, alginates, tragon, emulsifying agent such as partial glyceride and spices.After according to the ratio of this recipe specifies mentioned component being mixed, carry out pasteurization, cooling then as need heat homogenizing under intensive conditions, can make the lipochondrion particle mean size drop to about 8 to 20 microns like this.After the homogenizing material is cooled near 0 ℃ low temperature, with its slaking a period of time under this temperature.Homogenizing and slaking are the selectable stages.
As needs, this homogenizing and slaking material can be called " needing freezing material " below in the specification, preferably under about 2 ℃ to 7 ℃, be introduced in the single screw rod refrigerating plant, to be described in more detail this device below, in this device, above-mentioned substance delivered to an air injection region, material expansion rate in this district is 0 to 150%, and the degree of depth is cooled to-8 ℃ to-20 ℃, forces it to pass through a die head then.
Surprisingly, can make the pressure at die head exit place be no more than about 50 crust in the operation that need not to finish under the situation of high shear force single screw device.The product feature of producing is that its average ice crystal granularity is 10 to 30 microns, is starkly lower than the average ice crystal granularity that traditional refrigerator obtains.The product quality is improved, and its oiliness and butterfat are better.
The invention still further relates to a kind of equipment of implementing said method, it comprises a worm screw of rotating in housing, housing one end has an extrusion die, and the other end has the feedway that needs frozen composition, have feeder at the housing zone line, this housing also is equipped with a refrigerant fluid circulation cover.
Worm screw can have some continuous sections, and these section profiles have nothing in common with each other, and as orientation and pitch from screw thread, they have nothing in common with each other, and the configuration of screw rod is chosen as realizes transmission, mixing, shearing and the compression of material towards die head, helps inflation, makes its expansion.At zone line agitating device can be set, as have the single leaf or the double leaf agitator disk that just are orientated or have the negative orientation of backflow effect of conveying effect, perhaps be provided with the section of negative pitch, cause product reflux.
Housing is equipped with a double-contracting envelope cooling device, and preferably each section has an independently cooling system, has the cryogen flow control valve, can regulate and control the temperature of each section respectively.Screw rod itself also can have cooling system in.
By being positioned at the pipeline of housing diverse location, inject air by flowmeter, the pipeline that preferably passes through each side of housing of its length latter half injects air.Expansion rate can reach 0 to 150%, and preferably 30 to 120%.
Die head can be set at level or vertical outlet.Preestablish the shape and size of die head, under the situation of needs, set the diameter and the length of the outlet that is attached thereto, to guarantee about 4～50 crust, the negative pressure of preferred about 4～25 crust.Can regulate this negative pressure by the ball valve of described pipe downstream.For example, when exit product temperature during near lower bound, the diameter of outlet should strengthen, and falls to remedy the pressure that the pressure loss is brought due to viscosity raises under the low temperature.Preferably with the coolant jacket cooling die head that refrigerant cycle is wherein arranged.
Below in conjunction with exemplary accompanying drawing equipment of the present invention is described in more detail, wherein:
Fig. 1 is the decomposition diagram of this equipment.
As shown in fig. 1, this equipment comprises an extruding screw rod 1, and this screw rod is by a motor (not shown) drives around its axle rotation. Screw rod is packed in the housing 2, and there are need at the initial place of housing The conveying pipe 3 of frozen composition is carried Guan Youyi check-valves 4, guarantees air-tightness, this housing End is plate shape mould head 5.
This housing comprises the section F1 to F9 of 9 100 millimeters long, can advance with the screw configuration difference Row is regulated, and by the mobile housing of water-alcohol mixture and each ANALYSIS OF COOLANT FLOW are arranged accordingly System 6 connects, and regulates respectively flow rate with valve 7. Fill from air intake 8 from each side of housing Gas also injects air with a piston with mass flowmenter. Adjust respectively air stream with valve 9 Rate.
In the unillustrated scheme of another kind, mould head 5 has wherein have refrigeration liquid to flow cold equally But overlap, wherein the flow rate of refrigeration liquid can independently be regulated and control.
At the outlet end of housing 2 and mould head 5, pipeline 10 plays the pre-district of expanding. Pipeline 10 are furnished with ball valve 11 with control negative pressure and the time of staying of material in housing.
Suppose that L is the total length of each section of screw rod, i.e. effective length of this screw rod, D is that screw rod is straight Directly, then L/D is about 30-60.
Method of the present invention can illustrate in more detail by illustrative embodiment hereinafter.Herein as not pointing out in addition that the percentage number average by weight.
Embodiment 1
Prepare a kind of butterfat (fat content 35%) of 8.5% that contains, 11% fat-free dried milk solid, 12% sucrose, 6.4% glucose syrup (glucose equivalent is 40), 1% glucose, 0.47% partial glyceride is as the frozen composition for the treatment of of the low condensation point of the spices of stabilizing agent/emulsifying agent and 0.4% vanillic aldehyde.Said composition solid total content is 39.15%, and remainder is a water.Said composition is at 135 crust, and then in 35 crust two stages homogenizing, in 30 seconds of pasteurization under 86 ℃ of temperature, be cooled to 4 ℃ and under this temperature, placed 24 hours.Under the following operating condition that provides with the said composition feeder in:
-screw configuration
Section F1 F2 F3 F4 F5 F6 F7 F8 F9
Screw rod kind T T/M T/M M/C T CO M/CO M/CO CO
Wherein, T: carry M: mix C: shear CO: compression
-product flowrate, 6 ℃ following 8 kilograms/hour,
-air injects: at section F5 and 9 places, F6 both sides, promptly inject by 4 pipelines with the flow rate of 15 Grams Per Hours
-screw speed: 300 rev/mins
The cooling of-F2 to F9 section, used refrigerant fluid input temp is-26 ℃, and output temperature is-24.4 ℃, and flow rate is 17 liters/minute
-outlet die diameter: 12 millimeters
The product discharge temperature is-10.4 ℃, and its expansion rate is 40%.
The texture of food that obtains more has oiliness to have more butterfat than the food made from traditional approach.
Under-10 ℃ of temperature, be 30.25 microns (Dc, microns) with the average ice crystal diameter that amplifies 1000 to 1500 times of light microscope determinings.
Embodiment 2
In this embodiment, be equipped with the ice cream composition in order to the below legal system: under 60 ℃, to containing 0.8% stabilizing agent (gelatin, tragon) adds following material in the mixture: 29% sugar, 10% glucose syrup, 35% sugar-free raspberry mud, a kind of pigment, a kind of raspberry spices and a kind of food acids are adjusted to 3.2-3.4 with the pH value.Said composition solid total content is 30.30%, and remainder is a water.Said composition is homogenizing under 50 bar pressures and 72 ℃ of temperature, and pasteurization 30 minutes under 85 ℃ of temperature then is cooled to 4 ℃ and placed at least 4 hours under this temperature.
The composition that these need are freezing is sent into one and is had in the device of identical screw-rod structure with embodiment 1.Except that following, its operating condition is identical with embodiment 1:
-air injects: at section F5 and 9 places, F6 both sides, promptly inject by 4 pipelines with the flow rate of 15 Grams Per Hours;
Product outlet temperature is-10.4 ℃, expansion rate 40%.
In the above-described embodiments, the production method and the equipment of frozen food have just been described, can not handle diverse fragrant flavour and describe in detail simultaneously with coetrusion, the ice cream of different colours and ice cream, thereby for example be with marblized joint product, and under the situation of needs, can be contained additive.
Certainly, this method can be used for producing the meat pulp class equally, dairy produce, and sweet one-tenth spread class frozen food, as cheese, vegetables, meat or fish spread frozen food, flavouring or mayonnaise.In the above-mentioned frozen food of preparation, according to food characteristics and required degrees of expansion, can use this method to inflate flexibly, the modulation frozen composition.

Claims (8)

1.一种冷冻充气食品的生产方法，在该方法中，将需冷冻的组合物进行混合、充气、冷冻、冷却，使其达到或低于-8℃，并通过一个模头排出，其特征在于用单台置于带有充气和冷却装置的壳体内的单螺杆挤压装置，在单一步骤中完成这些操作。1. A method for producing frozen aerated food, in which method, the composition to be frozen is mixed, aerated, frozen, cooled to make it reach or lower than -8°C, and discharged through a die, characterized in It consists in carrying out these operations in a single step with a single single-screw extruder placed in a housing with aeration and cooling means. 2.权利要求1的方法，其特征在于将需冷冻的物质在约2℃至7℃温度下送入单螺杆装置中，在该装置中，螺杆转速约为100至600转/分钟，将冷冻物质送至充气区使其膨胀率约为0至150％，再深度冷却至-8℃至-20℃，然后使其通过一个模头。2. The method of claim 1, characterized in that the material to be frozen is fed into a single-screw device at a temperature of about 2°C to 7°C, in which the screw speed is about 100 to 600 revolutions per minute, and the frozen The mass is sent to an aeration zone where it expands from about 0 to 150%, deep cooled to -8°C to -20°C, and then passed through a die. 3.通过实施权利要求1或2的方法可获得的冷冻充气产品。3. A frozen aerated product obtainable by carrying out the method of claim 1 or 2. 4.实施权利要求1或2之一方法的装置，包括一置于壳体内的蜗杆，所述的壳体一端装有一个模头，而另一端装有待冷冻组合物的进料装置，在一中间区域装有进气设备，所述壳体备有其中有致冷剂流动的冷却套。4. The device for implementing the method according to claim 1 or 2, comprising a worm screw placed in a housing, a die head is housed at one end of the housing, and a feeding device for the composition to be frozen is housed at the other end, in a The middle area houses the air intake and the housing is provided with a cooling jacket in which the refrigerant flows. 5.权利要求4的装置，其特征在于所述蜗杆具有从螺纹取向及螺距看，形状各不相同的连续区段；所述蜗杆的构型设定为实现物料向模头的传输、混合、剪切及压缩操作，并设定为有利于加入气体，以获得良好的膨胀率。5. The device according to claim 4, characterized in that the worm has continuous sections with different shapes from the perspective of thread orientation and pitch; the configuration of the worm is set to realize the transmission, mixing, Shear and compression operation, and set to facilitate the addition of gas to obtain a good expansion rate. 6.权利要求4的装置，其特征在于：设定L为螺杆各区段的总长度，D为螺杆直径，则L/D比值为约30-60；螺杆的中间区域有单叶或双叶搅拌盘，其为具有输送效果的正取向或者具有回流效果的负取向，或者螺杆上具有导致回流的负螺距区段。6. The device of claim 4, characterized in that: L is set to be the total length of each section of the screw, D is the diameter of the screw, and the L/D ratio is about 30-60; the middle area of the screw has a single blade or a double blade stirring Discs with a positive orientation with a conveying effect or a negative orientation with a backflow effect, or a negative pitch section on the screw that causes a backflow. 7.权利要求4的装置，其特征在于：该壳体装有由双层包封构成的冷却设备，每一区段有一独立的冷却循环；需要的情况下，模头装有冷却设备；带有可对致冷液流率进行控制的球阀，可以独立控制各个区段的温度，并在需要的情况下，可以调节模头温度。7. The device according to claim 4, characterized in that: the housing is equipped with a cooling device made of double-layer packaging, and each section has an independent cooling cycle; when necessary, the die head is equipped with a cooling device; There are ball valves that can control the flow rate of the refrigerant, can independently control the temperature of each zone, and can adjust the temperature of the die if necessary. 8.权利要求4的装置，其特征在于：从壳体长度的1/2至4/5的不同位置，优选地从壳体的各侧，经由导管注入空气。8. The device of claim 4, characterized in that air is injected via the duct from different positions of 1/2 to 4/5 of the housing length, preferably from each side of the housing.
CN97190927A 1996-05-21 1997-05-12 Method and device for manufacturing aerated frozen products Expired - Fee Related CN1076957C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96201351.2 1996-05-21
EP96201351A EP0808577B1 (en) 1996-05-21 1996-05-21 Process and apparatus for producing aerated frozen products

Publications (2)

Publication Number Publication Date
CN1198076A true CN1198076A (en) 1998-11-04
CN1076957C CN1076957C (en) 2002-01-02

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US (1) US6228412B1 (en)
EP (1) EP0808577B1 (en)
JP (1) JPH11509741A (en)
KR (1) KR19990029082A (en)
CN (1) CN1076957C (en)
AR (1) AR007204A1 (en)
AT (1) ATE227511T1 (en)
AU (1) AU730469B2 (en)
BR (1) BR9707284A (en)
CA (1) CA2223913C (en)
DE (1) DE69624792T2 (en)
DK (1) DK0808577T3 (en)
ES (1) ES2185742T3 (en)
NO (1) NO980250L (en)
NZ (1) NZ329590A (en)
RU (1) RU2185073C2 (en)
WO (1) WO1997046114A1 (en)

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CN101554200A (en) * 2008-04-11 2009-10-14 荷兰联合利华有限公司 Frozen Desserts
CN104920776A (en) * 2008-04-11 2015-09-23 荷兰联合利华有限公司 Ice confection
CN102333451A (en) * 2009-02-25 2012-01-25 穆贝拉公司 Apparatus and method for increasing expansion of food products produced in a food processing system or apparatus
CN102334557A (en) * 2011-10-25 2012-02-01 上海光明奶酪黄油有限公司 Inflatable tiramisu processed cheese and preparation method thereof
CN102334557B (en) * 2011-10-25 2014-04-16 上海光明奶酪黄油有限公司 Inflatable tiramisu processed cheese and preparation method thereof

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AU730469B2 (en) 2001-03-08
KR19990029082A (en) 1999-04-15
RU2185073C2 (en) 2002-07-20
DE69624792T2 (en) 2004-10-07
NZ329590A (en) 1999-07-29
CA2223913A1 (en) 1997-12-11
ATE227511T1 (en) 2002-11-15
EP0808577A1 (en) 1997-11-26
DK0808577T3 (en) 2003-03-10
EP0808577B1 (en) 2002-11-13
NO980250L (en) 1998-03-13
WO1997046114A1 (en) 1997-12-11
US6228412B1 (en) 2001-05-08
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AR007204A1 (en) 1999-10-13
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CA2223913C (en) 2005-08-23
CN1076957C (en) 2002-01-02

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